Harford County Police say he was caught in a Bel Air neighborhood performing sex acts with a minor in a parked car over the weekend.

“Oh my God,” said neighbor Kathy Caines.

Police say the windows were steamy and their clothes disheveled when they approached the pair after neighbors complained about a suspicious car.

“This is a serious situation and I think they need to do more background checks on teachers on a yearly basis,” said parent Sharon Gray.

Hyzer teaches at Beechfield School in Baltimore City. Parents were concerned that the school didn’t notify them immediately.

“Yeah, I’m really concerned about that, that we weren’t notified of his arrest, at least for the children’s sake, because we might have children who are here that was molested in a way, so yeah, I’m really concerned about that,” Gray said.

We received this statement: “Baltimore City Public Schools has been informed that Mark Allen Hyzer, Jr., a city schools elementary school teacher, was arrested in Harford County over the weekend for alleged inappropriate contact with a 15-year-old male. According to protocol, the teacher has been placed on leave.”

No one answered at his Northwest Baltimore apartment.

“It’s still kind of sad to know that he’s doing stuff like that, yeah,” Caines said.